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S-wave

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Proceedings Papers

Paper presented at the 1996 SEG Annual Meeting, November 10–15, 1996
Paper Number: SEG-1996-1551
... ABSTRACT No preview is available for this paper. layer thickness component data relative amplitude crewe project s-wave refracted arrival static correction radial component data refracted arrival generalized linear inversion method processing 5 reservoir characterization...
Proceedings Papers

Paper presented at the 2015 SEG Annual Meeting, October 18–23, 2015
Paper Number: SEG-2015-5834398
... Summary Multicomponent 2D (9C2D) seismic data were acquired in Wellington field, south central Kansas with an aim to improve the understanding of Ordovician-aged, fractured carbonate formation that is being considered for CO2 storage. This study demonstrates how P-P and S-S seismic wave modes...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, March 23–April 1, 2021
Paper Number: IPTC-21465-MS
..., it is hard to accurately predict oil and water distribution by conventional P-wave prestack inversion. Marine four-component (M4C) P-wave and S-wave joint inversion can solve the problem effectively. M4C seismic survey collects P-wave and S-wave seismic data. An initial model can be established based on fine...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424781
... complex reservoir reservoir characterization equation 3 seg international exposition coupling sensitivity red circle angle range target parameter zoeppritz equation exploration geophysicist 10 avo inversion s-wave velocity joint-avo pp-avo Sensitivity of PP- and PS-Joint Zoeppritz AVO...
Proceedings Papers

Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-4159
... ABSTRACT Vertical seismic profile (VSP) data from a P-wave source includes rich wavefield information, by which both the velocities of the P-wave and the velocities of the S-wave from a nearby well can be obtained. By using both synthetic data and field data, we demonstrate an approach...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216409
... ABSTRACT Elastic wave propagation is highly complex when P- and S-waves scatter away and convert to each other at the discontinuities in the medium. Conventional elastic wave simulation methods often model particle displacement/velocity fields due to both P- and S-wave propagation...
Proceedings Papers

Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215360
... ABSTRACT In multi-component seismic exploration, it is still very difficult to obtain the S-wave statics. In this paper, we demonstrate a procedure to obtain S-wave statics in which we utilize the surface wave dispersion information of the P-wave seismic data to invert the shallow S-wave...
Proceedings Papers

Paper presented at the 2003 SEG Annual Meeting, October 26–31, 2003
Paper Number: SEG-2003-1370
... Summary The Eaton method for predicting pore pressures from Pwave velocities can be easily extended to S-wave and Cwave velocities, as validated by numerical modeling using well-known rock physics relations. Although originally described using an exponent of 3 (velocity ratio cubed equals...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2998566
... noise. Velocities of a surficial peat layer in the upper 3 m to 7 m were as low as 40 m/s. Velocities of an underlying sandy unit reached 200 m/s to 250 m/s by a depth of 20 m. At free-field sites away from levees, fundamental mode Rayleigh wave dispersion curves were well developed and velocity could...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2991016
... ABSTRACT Shear waves (S-waves) radiated from explosives and vertical sources have recently been investigated for land seismic exploration to exploit conversion to compressional waves (P-waves) as primary reflections (SP-waves). It is claimed that radial-S and transverse-S modes are generated...
Proceedings Papers

Paper presented at the 2018 SEG International Exposition and Annual Meeting, October 14–19, 2018
Paper Number: SEG-2018-2992118
... pure P-wave seismic data acquired previously. According to the special features of the seismic and geological conditions in this area, the following techniques are used: 1) The joint excitation technology through low-frequency vibrator and S-wave-vibrator is adopted. on one hand, the downward energy...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17256173
... ABSTRACT This paper introduces a special session at the 2017 SEG Annual Meeting titled: . In this session, speakers will focus on a low-cost, effective, land-based technology that allows all possible P-wave modes, all possible S-wave modes, and all possible converted modes to be utilized...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17734559
... ABSTRACT The inversion of surface wave dispersion curves is a well-established investigation approach to provide S-wave velocity models. Recent works have shown the possibility of exploiting the relation between surface wave wavelength and investigation depth to estimate directly the time...
Proceedings Papers

Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17410062
... ABSTRACT The use of surface wave methods in S-wave velocity (VS) estimation has been getting popular during the past few decades. This article briefly reviews various seismic methods using active and passive surface waves and discusses their applicability to site investigations...
Proceedings Papers

Paper presented at the 2016 SEG International Exposition and Annual Meeting, October 16–21, 2016
Paper Number: SEG-2016-13779870
... that cracks play in the nonlinear interaction of propagating waves. We present a laboratory experiment in which a strong S-wave slightly changes the velocity of a lower amplitude P-wave, and use a rock sample with aligned fractures to demonstrate that this signal is strongly dependent on fracture orientation...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0618
... Summary In three-component (3C) VSP data processing, first-break times of direct downgoing S-wave are commonly used for estimating the S-wave velocity. However, comparing to direct P-wave arrivals, the direct downgoing S-waves are usually too weak to be picked precisely. To mitigate...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-1614
... Summary In this work we compare the performance of two methods of microseismic event detection: a migration-based algorithm and a master-slave cross-correlation technique. The migration-based technique uses only P-wave while the cross-correlation uses both P- and S-waves. We apply both...
Proceedings Papers

Paper presented at the 2014 SEG Annual Meeting, October 26–31, 2014
Paper Number: SEG-2014-0105
... Summary The P-wave and S-wave quality factors ( Q p and ( Q s ) of the formation underground have gradually been accepted as reservoir or hydrocarbon indicators in oil/gas reservoir characterization. The differing opinions of the mechanism of the attenuation of seismic wave result...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-1061
...Estimation of P- and S-wave velocity model of unconsolidated granular materials through surface wave multimodal inversion Paolo Bergamo*, Laura Valentina Socco, Politecnico di Torino; Summary The estimation of near surface velocity models of unconsolidated sand bodies is a significant target...
Proceedings Papers

Paper presented at the 2013 SEG Annual Meeting, September 22–27, 2013
Paper Number: SEG-2013-0965
... Summary We numerically calculated P- and S-wave attenuation caused by wave-induced fluid flow in fractured media. The fractures are modeled as a poroelastic domain much more compressible than the background medium. The numerical approach is based on the solution of Biot’s equations...

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